Ladies in Grey

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Ladies in Grey Whilst the vast majority of steam locomotives were painted black, a number of locomotives employed on the more prestigious duties were sometimes painted in more prominent colours such as green, maroon or blue. However a colour not usually associated with steam locomotives was grey. When a new steam locomotive was completed it was often take outside to pose for its official portrait. However a locomotive painted all black tends not to show at its best in the monochrome (black & white) photography as used at that time. This situation was overcome by temporarily painting the locomotive in a brighter grey colour. Normally the locomotive would revert to a more traditional colour before main line running commenced but like many rules there were exceptions and the two described here are the "Ladies in Grey" of the title. London & North Eastern Railway W1 No. 10000 The LNER W1 No. 10000 (also known as the Hush-Hush due to its secrecy, and Galloping Sausage before rebuild due to its shape) was an experimental 4-6-4 four cylinder compound steam locomotive fitted with a high pressure water tube boiler. Nigel Gresley was impressed by the results of using high pressure steam in marine applications and so in 1924 he approached Harold Yarrow of shipyard & boilermakers Yarrow & Company of Glasgow to design a suitable boiler for a railway locomotive, based on Yarrow's design. The locomotive was completed at Darlington Works in 1929. The locomotive had a corridor tender and ran non-stop London to Edinburgh services to time in 1930. Nevertheless steaming was relatively poor during test runs and in spite of a number of modifications initially to the exhaust, boiler performance never reached the standards of an equivalent fire tube boiler. A problem never fully solved was air leakage into the casing. When it was deemed that no further progress could be made, the locomotive was taken to Doncaster Works in 1936 and rebuilt with a conventional boiler and three simple expansion cylinders on the normal Gresley principle. A modified A4 boiler was fitted which had 50 square feet (4.6 square metres) of grate area and 20 inch (508mm) diameter cylinders. The valves were considered undersized for the large cylinder diameter and this somewhat limited the speed capabilities of the engine. Its haulage capacity was nonetheless appreciated. The rebuilt engine still retained its additional axle, resulting in a more spacious cab for the crew. No. 10000 never carried a name, although it did carry small works plates on


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